I wanted to change to the Canadian English dictionary but I was not able to get the job done with the instructions in the docs.
I was able to turn on English-US spell check using: http://www.sublimetext.com/docs/2/spell_checking.html
I also found the list of languages at: https://github.com/SublimeText/Dictionaries
I tried changing the dictionary entry in Preferences.sublime-settings a number of different ways but did not get it to work. Each time I tried modifying the entry all the text would be underlined as misspelled.
What is the required modification for Canadian English, and other languages in general?
Can the docs related to spell check be updated to include this step?